What should be paid attention to when loading and unloading dry bulk cargo on Thai logistics lines

We all know that dry bulk cargo is dangerous goods in logistics, so when transporting dry bulk cargo, it is particularly important to pay attention to what should be noted when loading and unloading dry bulk cargo?

1. Cargo displacement: The displacement of bulk cargo poses a significant threat to ships, especially when loading bulk grain. Bulk grains often sink by 2%. Affected by ship vibrations and vibrations, the gaps between particles will gradually narrow, leading to surface subsidence of the particles. When a ship capsizes, the free movement of grains can cause particles to accumulate from one side to the other, leading to the capsizing of the ship.

2. High altitude falling: During loading and unloading, bulk cargo often falls into conveyor belts or grab buckets. When loading and unloading high-density goods such as iron ore, quartz, and steel shavings, special attention should be paid to avoiding impact and causing casualties. Deck duty personnel should strengthen their responsibilities and strictly prevent unrelated personnel from entering the work area. Workers should wear helmets, shoes, and reflective helmets.

3. Cargo dust: Cargo dust is one of the common hazards of bulk carriers. Bulk cargo often has dust, which can cause local irritation to the skin, cornea, and mucous membranes, and lead to a series of pathological changes. Therefore, deck duty personnel should try to avoid long-term exposure to high concentrations of dust and wear protective masks during duty. Dust can also have a negative impact on deck machinery, so deck machinery should be covered as effectively as possible when loading and unloading goods.

4. Damage to the hull structure: Due to its small loading coefficient and volume, it is easy to overload the local strength of the hull, increase the stress and torque of the ship, and lead to the destruction of the hull structure and strength.

5. Corrosion: Bulk cargo such as coal and sulfur are often stored in open-air yards, and in severe weather conditions such as rainy days, their moisture content increases significantly. During transportation, water slowly settles to the bottom of the cabin, causing acid corrosion of the inner panels of the cabin.

6. Pollution: Cleaning the cargo hold is an important component of a ship. As a ship engineer, this editor has participated in the cleaning work of the cabin multiple times. It should be ensured that there is no residue or rust in the cabin, the sewage well is clean, and the sewage treatment system is normal to prevent claims for pollution of the goods. For example, when loading cement, if there are other residues in the compartment, it may cause the cement to lose its setting; When cement comes into contact with water, it will solidify and harden after a period of time, completely losing its practical value. When filling sugar, it is important to note that the sugar is sensitive to moisture and heat, as moisture can mold and easily melt into syrup when heated.

7. Fire: Many bulk goods are at risk of catching fire. The oxidation of goods during navigation generates heat. Ordinary goods such as coal, sulfur, cotton, and fish meal are prone to heat. Coal also releases combustible gas - methane, which forms an explosive mixture when mixed with air. Dust from certain goods may explode. Sulfur powder is prone to explosion. Friction between cotton yarns may cause spontaneous combustion and generate heat. Bulk carriers should strictly comply with fire prevention measures.